Fasting-machine



(No Model.)

M. F. WILSON. PASTING MACHINE.

Patented Sept.-30, 1890;

face is thus coated quite to the edges. .other face is kept clean.

' UNITED STATES PATENT OrFIcE.

&

MERRICK F. WILSON, OF CHICAGO, ILLINOIS.

PASTiNGi-MACHINE.

SPECIFICATION forming part of Letters Patent No. 437,545, dated September 30, 1890.

Application filed July 24, 1888. Serial No. 280,885- (No model.)

To all whom it may concern.-

Be it known that I, MERRIOK F. WILsON, of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Pasting -Machines, of which the following is a specification.

The machine applies a thin uniform coating of paste, gum-arabic, or other adhesive material upon one side of each sheet of paper or other thin material fed through it. One The I have in my experiments used the machine to apply a solution of the adhesive material known as dextrine on one side of pieces of paper to be used for covering what are known as paper boxes, boxes the bodies of which are formed of pasteboard or other stout forms of paperstock out and folded to the required form. The edges of such bodies are first joined by narrow strips of muslin or stout paper, after which a sheet of fine paper, either white or tinted, having been previously cut to the proper size and form and gunimed or pasted on the inner face, is smoothly applied to cover the entire exterior. My machine requires no previous preparation to treat in rapid succession sheets of paper of dilferent size and form. The sheets are introduced one by one on the receiving side and are delivered in corresponding succession with the clean side downward upon an endless traveling apron, from which they may be removed at leisure and applied upon box-bodies or otherwise. used, as may be desired. A current of air ismade available to urge the paper against the fresh and uniformly coated surface of a slowly-revolving drum. Devices are provided which deflect the air so that it shall notbe felt at the point where the paper is taken off from the drum. I provide means for insuring that the paper shall be not only detached from the drum, butalso laidsmoothly and in the right position upon the apron whic carries it away. V

The accompanying drawings form a part of this specification, and represent what I consider thebest means of carrying out the in- -vention.

. drum.

work-table and apron being broken away to curtail the length of the figure. Fig. 2 is an elevation of a portion at right angles to the view in Fig. 1. Fig. 3 is on a larger scale. It is a central longitudinal section of a portion of the machine. Fig. 4 is aplan view 'of a portion thereof.

Similar letters of reference indicate corresponding parts in all the figures where they Its axis, supported in fixed bearings, is slowly turned by the aid of a gear-wheel B engaging with a pinion D, carried on the main driving-shaft D, which is driven by a pulley (not represented) receiving a belt from a steam engine or other suitable power. A large pulley D on the same shaft gives motion through the medium of a belt E and pulley F to a blower F, which may be of any suitable character. Ihave in my experiments used the style known as Rootsblower.' A strong current of air impelledby this blower is conducted upward into a pipe G, which extends across the machine near the under side of the drum B and is thickly bored with perforations These are set so as to blow toward the drum, but not squarely. The current of air is blown from the perforations g at an inclination.

O is a sliding gate mounted in the base of the tank A and having .on its upper facelugs C, which are loosely taken hold of by the screw-rods H, which are tapped through holes in the front face of the tank and may be turned by hand-wheels H. These'rodsH, by collars H and nuts 1-1 control the position of the gate 0. When the machine is in operation, the gate is adjusted so that its edge stands near {but not quite in contact with the pass it coated with a fresh layer of the adhe- Itallows the surface of the drum to these feed-rolls coincides with that of the,

drum B, being only enough slower to insure that the paper shall be smoothly extended upon the latter.

A is a transverse bar extending across the machlne under the drum, and A is a metallic deflector held on the bar A by means of a pinching-screw A. This should be so set that the upper edge 'of the deflector will almost but not quite touch the sheets of thin material, whichare being carried past it along on the drum. The deflector allows the drum, I

with its coating of adhesive material and sheets of paper on its under surface, to move past without touching; but the current of air which accompanies it is caught by the de-l flector and directed downward, so that the paper after being detached from the drum moves in air which is practically still.

A is :a cylindrical bar extending across the machine at a higher level. It supports a seriesiof removable levers K k, the part K of each lever being cast-iron and the part 7c beingasteel wire set therein, bent and sharp-' ened at the lower end, as shown. The superior gravity of the portion K holds the points of the wires or clearing-points 7c gently against the drum B and insures that the paper shall be detached from the-drum when it reaches this point. These parts K are narrow and are set side by side on the bar A".

tachmentof the paper and its deflection away from the drum in :an oblique upward direction. I

L is :a drum mounted in fixed bearings in the position shown, and receiving through gearing, as represented, a surface motion corresponding to that of the drum B. An end less-apron m runs over this drum L. The apron on also runs over and in contact with the upper face of a Work-table A which may be of any breadth to allow the attendants to work on each side of the apron, taking the pasted sheets from the apron as it traverses along between them.

' N is a drum, which keeps the apron m extended. I provide both for taking up any excessive slack of the apron, and also for ad- ;j-usti-ng'the angular position of this drum N, so as to guide the apron.

P is a-shaft mounted in fixed bearings, in which it is capable of partially revolving. P is an arm fixed on shaft P. Its upper end supports one of the bearings of the drum N. A short arm P extending horizontally from .shaft 1?, receives a screw Q, the point of which strikes a plate on the floor. -Byadjusting this screw Q the shaft P may be turned slightly in its bearings.

P is an arm extending obliquely upward from shaft P, on which it is fixed, and carrying a screw S. An arm R is mounted loosely on the shaft P. Its upper end supports one bearing of the drum N. The point of the screw S presses against a wing cast on the arm R. Adjusting the screw Q turns the shaft P and moves both arms P and B, so

1 as to move both ends of the drum N, and

thereby increase or relax the tension of the apron m. Adjusting the screw S changes the position of the loose arm R relatively to the shaft P, allowing the end of the drum supported in the arm R to be set to the right or left relatively to the arm P. This adj ustment, additional to the adjustment by the screw Q, serves to guide the .apron and keep it always on the mid-length of its respective drums Land N. p

T is a clearing-drum revolved in the position represented. Its surface may move, and preferably does move, some-what faster than the drum. It is grooved both longitudinally and transversely with grooves of V-sectien. These make the surface-of thisclearing-drum in effect a series of pyramidal spurs, the motion of which is certain to deflect the front edge of each sheet of paper downward and insure its resting properly upon the apron U u are a series of clearers held by pinchingscrews U upon a cross-bar A "One wire it lies in each of the circular grooves around the clearingdr-um T. These are onlyimportant in case the sheets shall tend to stick to the points of the pyramidal spurs and be carried around therewith. The clearers "insure their detachment.

I attach importance to the fact that mymachine applies the sheets to the under instead of to the upper side of thedrum B, fort hereason that'the arrangementpresentsthe sheetson the apron with their freshly-coated faces upward. This is very important, because the coated face is liable to stick. Theordinaryarrangement for applying the sheets to the upper side of the drum would leave them with the coated side down unlessspecial provision were made for turning them after. their removal. My machine avoids .all the difficulties.

I have shown "pinching-screws for holding someof the parts. Such may be used to adjust the positions if it shall be required; but there are many points where no such adjust ment will be required after the machine is once rightly made. I esteem it important that the clearers 76 be actuated independently each by the slight gravity of its respective arm K, in order to insure that the clearers apply gently and equally against the drum. Their independent construction and application also facilitate their removal for cleaning-or repairs.

It will be understood that the sides 'of the tank A should fit very accurately against the cylindrical surface of the drum B. There may be packing along these lines and other points, as where the screws H play through the front of the tank; but with any ordinary adhesive material, as dextrine, stationers gum, or wheat or rye paste, such is not necessary.

The gate should be set forward a little so I as to entirely close the aperture between itself and the drum whenever the machine is stopped.

I employ a pair of guide-bars A A arranged to serve as guides for the paper after ing from the principle or sacrificing the advantages of the invention. Instead of perforating the pipe G, I can make a continuous slot. I have in my experiments used three adjusting-screws H. Two may suffice or a greater number may be employed. It is important to be able to control the thickness of the coating not only generally, but at different points on the length of the drum.

The machine will serve without the feedrolls I J by simply urging the several sheets forward singly by hand. It can serve, with feed-rolls without the guide-bars A A I do not confine the use of theinvention to pasting paper in separate sheets for covering boxes. It maybe used with advantagein applying a coating of glue, gum, paste, or other adhesive substance, or even a coating of material not adhesive upon one side of sheets or rolls of paper, cloth, or other thin material,

in all cases delivering it on the apron with the coated surface upward.

When adhesive material is applied, the paper or other material thus partly coated may be used for staying-up, trimming, covering, and labeling paper boxes, also gum ming paper for postage-stamps, gummed labels, and other purposes.

My drum B is longer than is required to apply the coating upon any single sheet or strip.

I can pass two or more narrow strips or sheets through the machine simultaneously. Any size or shape of paper or other material may be passed through the machine without requiring any previous preparation'or adjustment of any part.

I do not claim the method of operating. Such will be made the subject of a separate application for patent filed August 31, 1888, Serial No. 284,247.

I claim as my invention- 1. A machine for the purpose stated, comprising a revolving roller, means for feeding fluid adhesive substance to the surface of the roller above the point of contact of the material therewith, sheet-feeding rolls located at the downwardly-moving side of the roller, and separating-fingers located at the upwardly-moving side of the roller.

. 2. A machine for the purpose stated, comprising a revolving roller, means for feeding fluid adhesive substance to the surface of the roller above the point of contact of the material therewith, sheet-feeding rolls located at the downwardly-moving side of the roller, a guide directing the sheets from said feeding-rollers against the revolving roller, separating-fingers located-at the upwardly-moving side of the roller, and a traveling carrierbelt located at the upwardly-moving side of the roller adjacent to the separating-fingers to receive the gummed sheets.

3, In a pasting-machine, the tank A drum B, gate 0, platform A, and series of clearingpoints It, in combination with each other, and with the carrying-apron m, and suitable means for operating the latter, arranged to receive the sheets and convey them away with their pasted faces uppermost, as herein specified.

4. In a pasting-machine, the tank A slowlyrevolving drum B, and adjustable gate 0, in combination with each other, and with the blower F and pipe G g, the latter perforated and arranged to insure the urging of the paper against the drum by the blast of air, substantially as herein specified.

5. I11 a pasting-machine, the tank A slowlyrevolving drum B, gate 0, feed-rolls I J, blower F, and connected blowing-pipe G g, levers K 7c, and traveling apron m, combined and arranged to serve as herein specified.

6. In a pasting-machine, the air-deflector A in combination with the blower F and connected blowing-pipe G g, and with the slowly-revolving drum B, tank A and gate 0, arranged for joint operation, as herei specified. 1

7. In a pasting-machine, the slowly-revolv ing drum 1%, in combination with the tank A feed-rolls I J, guide-bars A A, clearingpoints It, for detaching the material from the drum, andv the traveling apron m, with its drums L and N arranged for joint operation, substantially as herein specified.

8. In a pasting-machine, the tank A drum B, gate 0, blower F, connected blowing-pipe G g, clearing-levers K 7.0, clearing-drum T andits clearers U u, work-table A drums L N, and endless apron m, combined and arranged to serve substantially as herein specified.

In testimony whereof I have hereunto set my hand, at New York city, this 23d day of July, 1888, in the presence of two subscribing witnesses. MERRICK F. WILSON. Witnesses:

THOMAS DREW STErsoN, H. A. J'onusronn. 

